ClIAT. VT. 



MUSICAL CRICKET 



2r,l 



(Acridiidse). The total length of the body is two inches 

 and a quarter ; when the wings are closed the insect has 

 an inflated vesicular or bladder-like shape, owing to the 

 great convexity of the thin but firm parchmenty wing- 

 cases, and the colour is wholly pale-green. The instru- 



f^,^ax:\ 



Musical Cricket (Chlorocoelus Tanan^). 

 a. b. Lobes of wing-cases transformed into a mvisical instrument. 



ment by which the Tanana produces its music is 

 curiously contrived out of the ordinary nervures of the 

 wing-cases. In each wing-case the inner edge, near 

 its origin, has a horny expansion or lobe ; on one 

 Aving (h) this lobe has sharp raised margins ; on the 

 other (a), the strong nervure which traverses the lobe 



